* builds crds filters in parallel (#12360)
Based on run-time profiles, the majority time of new_pull_requests is
spent building bloom filters, in hashing and bit-vec ops.
This commit builds crds filters in parallel using rayon constructs. The
added benchmark shows ~5x speedup (4-core machine, 8 threads).
(cherry picked from commit 537bbde22e)
# Conflicts:
# core/Cargo.toml
* resolves mergify merge conflict
Co-authored-by: behzad nouri <behzadnouri@gmail.com>
55b0e9e9c7